Congress may vote to preserve the Sleeping Bear Dunes National Lakeshore under new legislation.
The legislation would preserve about half of the dunes as wilderness, 32,000 acres.
Developed roads, boat launches and historical structures wouldn't receive the wilderness designation, so people could still hunt, fish, hike and camp.
Michigan Senator Carl Levin is sponsoring the bill and the House could consider the bill this week.
Senator Levin says the bill came after 13 years of work to update the 71,000 acre lakeshore's management plan.